Burglar-alarm.



No; 628,264. Patented July 4, I899.

J. H. FLENTYE.

BURGLAB ALARM.

(Applicstion filed Feb. 27, 1899.)

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JOHN H. FLENTYE, OF ST. LOUIS,'MISSOURI.

BURGLAR-ALARM.

SPECIFICATION forming part of Letters Patent No. 628,264, dated July 4, 1899. Application filed February 2'7, 1899. Serial Il'o. 707,082- (No model.)

To aZZ whom it may concern.-

Be it known that I, JOHN H. FLENTYE, of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Burglar-Alarms, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

' This invention relates to improvements in burglar-alarms; and it consists in the novel arrangement, construction, and combination of parts, as will be more fully hereinafter described, and set forth in the claim.

The object of this invention is to construct a device that will give analarm by means of a shot or cartridge report and is placed at any desirable location in a room and can be operated by suitable connections in communication with every door and window.

Another object is that an alarm is sounded when the device is set whenever a window is raised or lowered and a door opened, and the same can be disconnected when desired, so that no alarm is sounded.

Referring to the drawings, Figure 1 is an interior perspective View of a room, showing windows and a door to which my alarm is applied and connected. Fig. 2 is a plan view of the alarm with its plate or cover removed, showing its operating mechanism. Fig. 3 is a perspective View of a portion of the alarm, showing its trigger and locking-latch. Fig. 4 is a side view of the alarm with its plate or cover shown in dotted lines. Fig. 5 is a perspective View of the hammer used in discharging the shot. Fig. 6 is a perspective View of a trigger used for engaging and disengaging the hammer.

In the drawings I show by referring to Fig. 1 an interior view of a room suitably equipped with my improved burglar-alarm 1,which may be placed on the wall, door-frame, or any place found most convenient. The alarm 1 consists of a base-plate 2, which is provided with ears 3, by which it'is secured to the wall, and in its center is a threaded pin or bolt 4, extending outwardly at right angles to said plate 2, and over which is pivotally mounted a hammer 5, being manipulated on its downward stroke by a spring 6, its one end communicatin g with said hammer and lodged in an angular recess 7 formed thereon, and its other end is passed around and securely held'to a pin 8, mounted and held to the plate 2, and

is also supported by an additional pin 9, also held to the plate 2. On the plate 2 is formed a block 10, in which is provided a bore 11, which is constructed and designed to admit the insertion of a cartridge 12. a blank cartridge is used and is placed therein from the top, so that its cap is immediately under the hammer 5. In setting the alarm for discharging the shot I place the hammer 5 in position, as shown by dotted lines in Fig. 2, and is held in this position by the hook 13 of the trigger 14 engaging with the hook 15, formed on the hammer 5. The trigger 14 is held and mounted overa pin or post 16,formed to the plate 2, and is held in engagement with the hammer by means of a spring 17, coiled around the post 16, its one end supported in a recess 18, formed on said trigger, and its other end resting upon the spring 6. The hammer is raised in this position by use of the handle or hand-lift 19, formed thereon, and when released the point or pin 20 strikes the cap of the cartridge, thereby discharging the cartridge, causing an alarm. The trigger is provided with an extension or lever 21, in which is an eye 22, in which is adapted to be passed and tied a cord,wire, or cable 23,which is also connected to a crank-lever 24, secured to the door-frame in any desirable manner. The lever 24 is so applied, allowing space between its vertical projection 25 and the frame of the door for the insertion of an arm 26 or lever, being pivotally secured to the door.

' To the plate or cover 27, which is held in place by a nut, I apply a latch 28, which is pivoted at its one end (see Fig. 3) and adapted to be brought in communication with the under side of said trigger 14 for locking the same to prevent said alarm from operating while the door is being used during the day.

I place my alarm at any desirable location in a room and I connect the alarm with any number of windows and doors by means of cords, wires, or cables 29, which are secured to the window-sash by snaps or hooks secured to screw-eyes or rings or in any manner well known to the trade.

The operation of my invention is as follows:

In thiscase' After setting my invention when placed in operative position on the wallI withdraw the latch 28 in its position as shown in Fig. 3. I then raise the hammer in position as shown by dotted lines in Fig. 2, so that its hook comes in communication with the hook 13 of the trigger let and is held in this set position by means of the coil-spring 17, and a blank cartridge is placed in the bore 11. I then attach the cords, wires, or cables 29 to the window-sash, and the arm 26, secured to the door, passes behind the vertical projection of the lever 24. hen in this position, should the door be even slightly pushed open it causes the lever 26 to press against thelever 24:, pulling downward upon the cord 23, releasing the trigger from the hammer, causing the point 20 to forcibly strike the cap of the cartridge 12, which causes the alarm. It the upper sash of the windows are pulled down or lowered or the lower sash raised, it pulls upon the cords 2!),

I which also releases the trigger, causing the ger 14, which will prevent the trigger from releasing the hammer.

I do not desire to limit myself to this procise form of connecting the alarm with the windows and doors, because the cords may be arranged in any desirable manner as found most convenient and also in securing said cords to the sash of said windows.

I claim-- In a burglar-alarm, composed of a baseplate provided with suitable posts, a cartridge-carrier formed on said plate, a cover placed upon said plate and held to one of said posts, a hammer pivotally mounted between said plate and cover and controlled by a spring, a pin formed on said hammer which is brought in communication with the cartridge, a trigger pivotally mounted between said plate and cover and provided with. a

means for engaging said hammer for holding it in cocked position, a latch formed on said cover and designed to be brought in communication with the under side of said trigger for locking the same, and a means for operating the alarm mechanism when in its operative position by connections to the windows and doors, substantially as shown and for the purpose set forth- In testimony whereof I aflix my signature in presence of two witnesses.

JOHN I-Ir FLENTYE.

Witnesses:

EDW'ARD E. LONGAN, ALBERT J. MCCAULEY. 

